Textbook and Unmarred

Textbook adjective - Constituting, serving as, or worthy of being a pattern to be imitated.

Unmarred and textbook are semantically related. In some cases you can use "Unmarred" instead an adjective "Textbook".

Unmarred adjective - Free from physical or moral spots or stains.

Textbook and unmarred are semantically related. Sometimes you can use "Textbook" instead an adjective "Unmarred".